Remove travis dependency in favor of Github Actions (#215)

Update Go and dependencies (#213)

* Bump dependencies

* Bump travis go version

* Bump dependencies

Add build for M1 osx chip (#163)

Merge pull request #65 from nordcloud/dependabot/go_modules/github.co…

…m/sirupsen/logrus-1.8.1

Bump github.com/sirupsen/logrus from 1.7.0 to 1.8.1

Fixes #44 version printing (#51)

fix travis

Bump github.com/aws/aws-sdk-go from 1.33.12 to 1.35.19 (#41)

Bumps [github.com/aws/aws-sdk-go](https://github.com/aws/aws-sdk-go) from 1.33.12 to 1.35.19.
- [Release notes](https://github.com/aws/aws-sdk-go/releases)
- [Changelog](https://github.com/aws/aws-sdk-go/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-go@v1.33.12...v1.35.19)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Allow to specify custom AWS region (#15)

* Use AWS_DEFAULT_REGION env (necessary when assuming roles in AWS China)

* Add an option for specifying a region

Store creds origin (#14)

* Store credentials origin in environment vars.

Store three additional environment variables that hold information about
credentials origin. At first, it might seem redundant but it will be
useful for scripts that add data to terminal prompts (powerlevel9k, p10k
etc.). Command aws sts get-caller-credentials already can return
credentials origin, but it could be undesirable to do HTTP calls just
for the prompt purposes.

* Example usage of credentials origin variables.

* Reformat README.md

Release version 0.3.4 of assume-role-arn.